Specifications tankless,instantaneous heating, save energy, safe. easy installing and using. 8 stalls adjustable to suit your various bath features! bathroom OR kitchen use: 1.Specification: 1) Power: 5500W 2) Voltage: 220V-250V 3) Frequency: 50Hz 2.Features: 1)On-demand hot water in just 5 seconds. 2)Nationally patented technology, ensure water is completely separated from electricity. 3)Five protectors ensure 100% user safety: double electricity leakage protector; safety thermal cut-out; over-pressure protector; dry-heating protectors. 4)Dynamic LCD display screen. 5)Several heating power settings to meet different demands in different seasons. 6)Heating power setting memory function: avoid repeated operation. Convenient to use.